Strip-supporting mechanism



March 21, 1933. 1 w ANDERSON 1,902,010

'STRIP SUPPORTING MECHANISM Filed July 14, 1931 2 Sheets-Sheet 1 llllllllllllll |NVENTOR Zola/J WAnderdOn ATTORNEY March 21, 1933. L, w. ANDER-SON 1,902,010

STRIP SUPPORTING MECHANISM Filed July 14, 1931 2 Sheets-Sheet 2 I INVENTOR ZflllI/J MAnagraan ATTORNEY Patented Mar. 21, 1933 UNITED STATES PATENT oFncE LOUIS W. ANDERSON, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO GILLETTE SAFETY RAZOR COMPANY, 015 BOSTON, MASSACHUSETTS, A CORPORATION OF DELAWARE sraIr-snrroarme macnanrsar a lication filed July it,

emng devices and to keep the sharpened edges.

of the strip out of contact with any parts of the machine, to prevent dulling of the sharpened edges of the strip.

An ob] ect of the invention is to provide simple and efiective means to support a perfo-- rated strip of metal in relation to a shar ening device during travel of thestrip in relation to said device for a sharpening edge of said strip, whereby the edge to be sharp ened will be maintained accurately with respect to the sharpening device and without coming in contact with any parts of the machine.

The invention comprises a pivoted support having spaced projections on one side provided with inclined edges adapted to enter spaced perforations in a continuous strip of metal, means to propel the strip with respect to said support whereby the projections of the latter may enter and recede from the erforations in the strip and will be cause to rock by engagement with the strip for entering and leaving the successive perforations, and sharpening devices adapted to operate on appropriate tained in position by said support. Any desired number of sa1d supports maybe provided in a machine in spaced relation with res ect to the sharpening devices.

claims.

he invention also comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the In the accom' an n drawin Fig. 1 is a pldh vib wif a mach iheembodyin this invention; 1 ig. 2 is a' front elevation of Fig. 1; Fig. 3 is an enlar ed face view of a perforated strip to be sharpened; Fig. 4 is an enlarged sectional detail on line 4, 4 in Fig. 2,-showing the strip and supmmi o t in one position;

Fig. 4a is a perspective view showing the strip and support 1n the same position asm edges of the strip that is mainrear. Serial No. 550310.

Figs. 5, 6, and 7 are detail views illustrating the strip and the support in difi'erent positions, and

Fig. 8 is an enlarged section on line 8, 8 in Fig. 1.

Similar numerals indicate corresponding parts in the severalvlews.

lid

'lhe numeral 1 indicates a'main frame which may be of any desired construction;

At 2 and 3 are grinding'd'isks or wheels rotatively carried by bearin'gs 4 and 5 on the main frame, on opposite sides of perforated strip A to be sharpened or ground, such as rough grinding, on opposite sides of and along an edge of the latter. The disks 2 and 3 are shown provided with pulleys 6 and 7 to be driven by belts 8 and 9 from drive pulleys l0 and 11 on a drive shaft 12 journaled in suitable bearings on the main frame, whereby said disks may be driven in required direc-. tions with respect to the-strip A. Any's'uitable or well-known means may be provided for guidin the strip 2 and 3. paced from the disks 2 and 3 are other disks 14 and 15 shown located on op 0- site sides of the strip A adapted'to furt or with respect to the disks sharpen the previously ground edges of the latter, such as for fine grinding or finishing, or stropping. The disks 14 and 15 have shafts journaled in bearings 16 and 17 on the man frame, and the shafts of said disks are shown grinding disks set orth are well no'wn'in the art and. any desired number of said disksin suitably s aced relation may be prov ded in the machine. The strip A may be prosired or .well-known'way. In the example pelled along the-sharpening disks in any deillustrated, spaced feedinggollers, at 24 and 25, are sup orted by sha 26 and 27 journaled on tli e main frame inawell-known way, whereby said rollers will gri the strip and feed the same. For rotatin r0 shaft 27 is, shown provided wit a mesh with a worm 29 journaled in bearin s, at 30, on the main frame and provided w th ler 25, the gear 28 in blades. A pivoted support for strip A is in-' dicated at 34, shown supported by a pivot-35, centrally disposed, whereby the support may rock with relation to strip A. The support 34 is shown in the form of-a relatively thin, elon gated flat plate carried by a standard 36 secured to the main frame by screws 42. The standard 36 is shown comprising two adjacent members 37 and 38, secured together by screws 39. The member 37 carries the pivot and is provided with a transversely disposed.

recess or seat 40 which rockably receives and guides the support 34, (Figs. 4, 4a and 8). The member 38 has a recess 43 opposite the recess 40 to permit entrance of portions of the support 34. Between the members '37 and 38 is located a groove 44 for the free passage of the lower edge of strip A (Figs. 4a and 8) The support 34 is-provided, on one side or edge portion, with projections 34a and 34b in spaced relation on opposite sides of pivot 35, adapted to enter the perforations a of the strip as the latter travels in the direction of the arrow in Fig. 1. The outer edges of the projection 34a are inclined, respectively, toward the pivot 35, at .340, and toward the adjacent outer end of the support, at 34d, and the edges of the projection 346 are inclined, respectively, toward the pivot 35,, at 34' and toward the adjacent end of the support, at 34". Said inclined edges areaadapted to be engaged by material a of the strip at ends of one or more of the projections 34a, 345, will the perforations a to cause rocking or tilting of the support 34 as the strip travels, so that be one or more perforations of the strip at alltimes. The inclined edges 34d and 34 extend substantially in the same relative direction with respect to the pivot 35. .The inclined edges 34c and 34" extend substantially in the same relative direction with res ct to the pivot 35. A space d is provided a ong the edge of support 34 between the edges 34c and 34' thereof, adapted to receive the portions 0 of the strip as 'in Fig. 5, and the edge 340 will clear the portions 0 of the strip, (as in Fig. 4 and the edge 34" will clear a portion 0 o the strip as in Fig. 7. I

When the strip is in the position shown in Fig. 4 the rojection 346 will be in a perforation aof t e strip and theprojection 340 will be out of an adjacent perforation, the portion a of the strip being in the space d between the edges 340 and 34', for supporting the stri As the strip travels toward the left in ig. 4, the material 0 of the strip, between two perforations a, will engage the edge 34' of support 34 and will cause said will be moved free from the strip and the projection 34a will be advanced through a correspondin perforation a, of the strip as indicated in ig. 6, to support the strip. As the strip continues to travel, the edge 34d of the support 34 will be located in reglster with the corresponding" portion a of the stri as indicated in Fig. 6. Continued travel 0 the strip causes engagement of the last-named portion 0 thereof with the edge 34d of support 34, whereby said support will be rocked 1n the direction of the arrow in Fi 6 to cause projection 34a to begin torece e from the perforation a and the projection 34b to enter said perforation, as indicated in Fig. 7. Continued travel of the stri causes the said portion a to continue to roc the support 34 1n the direction of the arrow in Fig. 7 and to return said support to the position shown in Fig. 4, with the projections 34a free from the.

str1p and the projection 34b within'a'per-foration in the strip. The aforesaid rocking motions of the support '34 occur successively as the strip travels, while at all times one or both of the projections 34a and 341) will be within one or two perforations a of the strip,

thereby supporting the strip in a definite aligned position with res ect to an associate sharpening disk to maintam the adjacent edge .or mar inal portion of the strip in position to be s arpened, as for sharpening of the ap r'opriate facet along the strip.

ny desired number of the su ports 34 may bearranged along the strip A in esired spaced relation, on the desired side of the strip, as illustrated in Fig. 1. An advantage of the im-- provement described is that the support 34 may be located in. transverse register with and close to a sharpening disk or wheel to reta1n the strip in position to be ground or honed in a positive manner, to resist vibration or movement of the strip in a vertical or edge-wise direction, as illustrated in Fig. 8. The member 38 of the standard 36 is shown gagement with the appropriate edge portion or facet of strip A. Where the strip passes between the members 37 and 38 the latter are suitably recessed or grooved as a guide at 45,-

(Figs. 4 and 4a), adjacent to the recess 44 and rovided with a recess, at 380, to admit t e ad acent sharpening disk for en-- may be located along one or both edge per-1 tions of strip A, in connection with sup;- ports 34. I

The improvement described is simple 1n construction, and effective in use in supporting the strip in various positions during travel. The support 34 is not liableto get out of order, is not required to travel with the strip to support it, and the support 34 is particularly useful in supporting strips having spaced longitudinally extending perforations in the form of slots, as indicated in the drawings, since some portion of the support will at all times be in one or another perforation and some portion 0 of the strip will be in position to co-operate with the support substantiallyat all periods of the progress of the strip.

This invention is not limited to the particular details of construction and relative arrangement of parts set forth, as the same may be varied, within the scope of the appended claims, without departing from the spirit of the invention.

Having now described my invention, what I claim is:

' 1. A machine of the character described comprising means to propel a perforated continuous strip, and a support for the strip pivotally supported adjacent said strip, said support having projections spaced on either side of the pivot to enter perforations in the strip, said projections having inclined edges on opposite sides of the pivot adapted to be engaged by material of the strip between perforations for rocking the support.

2. A machine of the character described comprising means to propel a perforated contions for rocking the support during travel of the strip.

4. A machine as set forth in claim 3 in which an edge of one projection extends toward an end of the support and wedge of the other projection extends toward the pivot for alternate engagement with material of the strip.

5. A machine as set forth in claim 3 in which the standard is provided with a guide for the strip adjacent to the support.

6. A machine as set forth in claim 3-1n which the standard is provided with a guide for the strip adjacent to the support, the:

standard. also having a recess in communication with said guide to receive an edge portion of the strip;

7. A machine of the character described comprising means to propel a perforated consupport having spaced projections to enter perforations in the strip, said support having a recess between said projections to receiveportions of the strip between perforations therein, said projections having in clined edges to be engaged-by said portions of the strip for rocking the support during travel of the strip, inclined edges of the sup port extending toward the pivot and other inclined I edges extending toward adjacent ends of the support.

, LOUISW. ANDERSON.

tinuous strip, and a support for the strip pivotally supported adjacent said strip, said support having spaced projections to enter perforations in the strip, said support having a recess between said projections to receive portions of the strip between perforations therein, said projections having inclined edges to beengaged by said portions of the strip for rocking the support during travel of the strip, an inclined edge of one projection extending toward an end of the support and an inclined edge of the other projection extending toward the pivot.

3. A machine of the character described comprisin, means to pro el a continuous perforated strip, a standar and a support. for

the strip pivotally carried by the standard adjacent to the strip, said support having rojections spaced on opposite sides of the plvot to enter spaced perforations in the strip and provided with inclined edges on either side of its pivot to be alternately engaged by material of the traveling strip between perfora 

